Difference between revisions of "KA10"

From Computer History Wiki
Jump to: navigation, search
m (better pic loc)
(Mention hardware support for timesharing)
Line 13: Line 13:
 
| clock speed = 3 μsec (approximately - different instructions take different amounts of time, the CPU is not synchronous)
 
| clock speed = 3 μsec (approximately - different instructions take different amounts of time, the CPU is not synchronous)
 
| memory speed = 1.0 μsec (fast), 1.8 μsec (slow)
 
| memory speed = 1.0 μsec (fast), 1.8 μsec (slow)
| memory mgmt = dual base and bounds register pairs (non-customized machines)
+
| memory mgmt = dual [[base and bounds]] register pairs (non-customized machines)
 
| operating system = Monitor, [[ITS]]
 
| operating system = Monitor, [[ITS]]
 
| predecessor = [[PDP-6]]
 
| predecessor = [[PDP-6]]
Line 24: Line 24:
 
The '''KA10''' was the first generation of [[PDP-10]] processors (themselves, exact re-implementations of the earlier [[PDP-6]] architecture). It was built out of discrete transistors, on [[DEC card form factor|short single]] [[FLIP CHIP]] cards.
 
The '''KA10''' was the first generation of [[PDP-10]] processors (themselves, exact re-implementations of the earlier [[PDP-6]] architecture). It was built out of discrete transistors, on [[DEC card form factor|short single]] [[FLIP CHIP]] cards.
  
It was used in the first [[DECsystem-10]] models, running [[TOPS-10]]. It was also the machine on which the [[ITS]] and [[TENEX]] [[operating system]]s were developed, after the machines were modified to provide [[paging]] (the KA10 normally only provided 'base and bounds' memory management hardware).
+
It had hardware support for timesharing (two modes, 'User' and 'Executive'), as well as [[base and bounds]] memory management hardware. These were used in the first [[DECsystem-10]] models, running [[TOPS-10]].
 +
 
 +
It was also the machine on which the [[ITS]] and [[TENEX]] [[operating system]]s were developed, after the machines were modified to provide [[paging]].

Revision as of 12:54, 27 September 2017


KA10
Manufacturer: Digital Equipment Corporation
Architecture: PDP-10
Year Design Started: January, 1966
Year First Shipped: September, 1967
Form Factor: mainframe
Word Size: 36 bits
Logic Type: silicon transistors and diodes
Design Type: asynchronous with hardware subroutines
Clock Speed: 3 μsec (approximately - different instructions take different amounts of time, the CPU is not synchronous)
Memory Speed: 1.0 μsec (fast), 1.8 μsec (slow)
Physical Address Size: 18 bits (normal), 19/20 (ITS paging box), ?? (TENEX paging box)
Virtual Address Size: 18 bits
Memory Management: dual base and bounds register pairs (non-customized machines)
Operating System: Monitor, ITS
Predecessor(s): PDP-6
Successor(s): KI10
Price: US$150K (CPU), US$300-700K (system)


B-series FLIP CHIP used in the KA10 CPU

The KA10 was the first generation of PDP-10 processors (themselves, exact re-implementations of the earlier PDP-6 architecture). It was built out of discrete transistors, on short single FLIP CHIP cards.

It had hardware support for timesharing (two modes, 'User' and 'Executive'), as well as base and bounds memory management hardware. These were used in the first DECsystem-10 models, running TOPS-10.

It was also the machine on which the ITS and TENEX operating systems were developed, after the machines were modified to provide paging.